Wrench.



BQ c. WILDMO.

WRENCH.

APPLICATION FILED JUNE'7, 1910. 1,042,786, Patented 0%.29, 1912.

2 MEETS-SHEET 1.

B. G. WILDMO.

WRENCH.

APPLICATION FILED JUNE 7, 1910.

Patented Oct. 29, 1912.

2 SHEETSSHEET 2.

awe/14 C011 Bevyhmahfihflidmo f inaa'rse.

UNITED STATES ienrnnr @FFTGE.

BENJAMIN C. 'WZLDMO, OF BERNER, MINNESOTA.

' WRENCH.

Specification of Letters Patent.

Patented @ct. 29, 11912.

Application filed June 7, 1910. Serial No. 565,475.

I o aZZ whom it may concern:

Be it known that T, BENJAMIN G. lVILDMo, a citizen of the United States, residing at Berner, in the county of Clearwater, State of Minnesota, have invented certain new and useful Improvements in Wrenches; and I do hereby declare the following to be a full, clear, and exact descripticn of the invention, such as will enable others skilled in the artto which it appertains to make and use the same.

This invention relates to wrenches.

The object of the invention resides in the construction of a wrench especially'adapted for tightening nuts on the teeth of threshing machine cylinders.

To this end the invention comprises a frame in which is mounted a rotatable nut receiving socket and a rotatable handle together with connections between the socket and handle whereby the rotation of the handle will be transmitted to the socket. The wrench is further arranged and constructed so that the handle thereof is adapted to be positioned on the same side of the frame as the socket or on the opposite side thereof as the particular nature of the work may require.

In describing the invention in detail reference will be had to the accompanying drawings wherein like characters of reference denote corresponding parts in the several views, and in which,

Figure 1 is a side view of a wrench constructed in accordance with the invention; Fig. 2, a section on the line 22' of Fig. 1; Fig. 3, an end view of the wrench with the securing nut of the handle removed; Fig. 4, a section on the line H of Fig. 3, a fragment of the handle being shown in elevation; Fig. 5, a section on the line 55 of Fig. 2; Fig. 6, a section on the line 66 of Fig. 8; Fig. 7 a detail perspective view of the reversible nut receiving socket partly broken away; and Fig. 8, a detail perspective view of the spring for frictionally holding the gears of the wrench against accidental rotation.

Referring to the drawings, the wrench is shown as comprising a ll-shaped plate 10 which has formed in its respective arms near its bight portion circular apertures 11 and 12. iiotatably mounted in said apertures l1 and 12 is a handle 13, one end of which is squared as at 1 1; said squared end being disposed between the arms of the plate 10 and in the apertures 11 and 12. The squared end 14 of thehandle terminates in a reduced threaded is mounted a nut 16. A between the arms of the vided with a squared aperture 18; through which the squared end of the handle 13 exs tends whereby the gear 17 and the handle 13 are adapted for rotation in unison. The diameters of the squared portion 14. of the handle are substantially equal .to the diameters of the aperture 18 in the gear 17, but as the diagonals of the apertures 18 are greater than the diameter of the aperture 11 and the diameter of the aperture 12 the longitudinal edges of the squared portion 14 are suitably gear 17 is disposed flattened so as to permit said handle to project through the apertures 11 and 12; said flattened edges forming a bearing for the handle upon the wall of the aperture 11.

Formed in the same arm of the plate 10 with the aperture '11, near the outer end of said arm is another aperture 19 of circular formation, while an aperture 20 in alinement with the aperture 19, but of smaller diameter than the latter is formed in the other arm of the plate 10. A nut engaging socket 21 is provided with a longitudinally extending stem 22 having a squared intermediate portion 23 and a reduced cylindrical outer end 24. The stem 22 is mounted 'for rotation in the apertures 19 and 20, the

inner portion of the stem being disposed in the aperture 19, the squared portion 23 being disposed between the arms of the plate 10 and the reduced cylindrical terminal 24 being disposed in the aperture 20 and ex tending beyond the outerface of the adjacent armof the plate 10. The projecting portion 24 is provided with a transverse aperture 25 through which is inserted a lock pin 26 for securing the nut engaging socket against disengagement from the plate 10. A gear 27 is provided with a squared aperture through which projects the squared portion 23 of the stem of the nut receiving socket; said nut receiving socket and gear being thus adapted for rotation in unison.

Passing through the sides of the plate 10, intermediate of the handle 18 and the receiving socket21 is a bolt 28' upon which is rotatably mounted an idler gear 29 meshing with the gears 17 and 2'3. A hm spring 30 is pierced by the bolt '28 a is confin d between one side of the idler gear portion 15 upon which,

plate 10 and prog weaves 29 and the adjacent face of one of the arms arms of said U-shaped plate being provided of the plate 10. The spring 30is ofvsutfiwith alining circular apertures of equal cicnt strength to bear against the gear 29 diameters, a handle provided with a squared and prevent said gear and the gears assoterminal having its longitudinal edges flat- 5 ciated therewith from rotation during the tened to form bearing surfaces whereby the application of the Wrench to the desired nut. squared terminals may be inserted in the From the construction previously deopenings in the arms of the plate from scribed and particularly by reference to Fig. either side of the latter so as to position the 4E it will be apparent that the handle 13 is handle on the same side of the frame as said 10 adapted for operative connection With the nut receiving socket or on the opposite side plate 10 and gear 17 when disposed on the of said frame, and a gear disposed between same side of the plate as the socket 21 or on the arms of said til-shaped plate having a the opposite side thereof. squared aperture through which the 'Vlhat claimed is: squared terminal of the handle projects,

15 A wrench comprising a U-shaped plate, a said last named gear meshing with the idler nut receiving socket provided With a longigear.

tudinally extending stein rotatably mounted In testimony whereof, ll aifir. my signa' in the arms of the,,U-shaped plate, a gear ture, in presence of two Witnesses. mounted on said stem for rotation there- T T W T 0 with and disposed between the arms of the BEINJAMUN M LJDMU" U-shaped plate an idler gear journaled be- Vlhtnesses. tween the arms of the til-shaped plate and @LUF BERGLUND,

meshing with said first named gear, the H.0YW1nnnss. 

